Patents
Patents for F04B 37 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups (3,029)
04/1990
04/18/1990EP0363497A1 Cryogenic adsorption pump
04/11/1990EP0363334A1 A method for the manufacture of a vacuum insulating structure and an insulating structure so produced
03/1990
03/27/1990US4910965 Means for periodic desorption of a cryopump
03/22/1990WO1990002878A2 Electronically controlled cryopump
03/13/1990US4907413 Regenerable cryosorption pump with movable physical barrier and physical barrier thereof
02/1990
02/28/1990EP0232325B1 Cryopump with exhaust filter
01/1990
01/30/1990US4896511 Optimally staged cryopump
01/10/1990EP0349577A1 An optimally staged cryopump.
12/1989
12/27/1989EP0347473A1 Cryogenic condensation pump
12/27/1989EP0347452A1 Counterflow leak detector with high and low sensitivity operating modes.
12/26/1989US4889319 Bakeable vacuum systems
12/20/1989EP0347367A2 Process for producing a vacuum
12/19/1989US4887941 Method and apparatus for starting series-coupled vacuum pumps
12/14/1989WO1989011896A1 Regenerable cryosorption pump with movable physical barrier and physical barrier thereof
12/12/1989US4886599 Filter cartridge with series elements for chemical and mechanical filtration
12/06/1989EP0344333A1 Cryogenic adsorption pump
12/06/1989EP0344290A1 Vacuum apparatus.
11/1989
11/29/1989EP0343914A1 Evacuation apparatus and method
11/09/1989DE3814389A1 Method for diminishing residual gas in high-vacuum systems by getter layers and for generating these, and correspondingly coated high-vacuum systems
11/01/1989CN1005642B Process for production of vaccum
10/1989
10/25/1989EP0338764A2 Vacuum pumps
10/25/1989EP0338113A1 Method for the adaptation of a 2-stage cryogenic pump to a specific gas
10/25/1989CN1036618A Separator and biasing plate
10/18/1989EP0337917A1 Separator and biasing plate
10/18/1989EP0337681A2 Vacuum pump systems
10/18/1989EP0336992A1 Method and device for testing the operation of a cryogenic pump
10/17/1989US4873913 Dry roughing pump having a gas film bearing
10/17/1989US4873833 Apparatus comprising a high-vacuum chamber
09/1989
09/27/1989EP0334286A1 Vacuum cryopump with improved first stage
09/21/1989WO1989008781A1 Cryogenic adsorption pump
09/21/1989WO1989008780A1 Cryogenic adsorption pump
09/20/1989EP0332658A1 Enhanced density modified isoplanar process.
09/13/1989EP0332107A1 Turbomolecular pump and method of operating the same
09/05/1989US4862697 Cryopump with vibration isolation
08/1989
08/29/1989US4860546 Vacuum system with molecular flow line
08/08/1989US4854825 Multi-stage vacuum pump
08/02/1989CN1034418A Vertical three-stage oxygen compressor for bottle anhydrous oxygen
07/1989
07/27/1989WO1989006565A1 Cryosorption surface for a cryopump
07/25/1989US4850806 Controlled by-pass for a booster pump
07/13/1989WO1989006317A1 Cryogenic condensation pump
07/04/1989US4845360 Counterflow leak detector with high and low sensitivity operating modes
06/1989
06/29/1989WO1989005917A1 Cryogenic adsorption pump
06/29/1989WO1989005689A1 Vacuum apparatus
06/21/1989EP0320956A2 Screw type vacuum pump
06/15/1989WO1989005514A1 Counterflow leak detector with high and low sensitivity operating modes
06/13/1989US4838035 Continuous cryopump with a method for removal of solidified gases
06/06/1989US4835972 Flex-line vibration isolator and cryopump with vibration isolation
05/1989
05/30/1989US4835441 Directly heated sorption getter body
05/30/1989US4834631 Separator and biasing plate
05/30/1989US4834136 Pressure relief filter and valve and cryopump utilizing the same
05/30/1989US4833899 Cryopump with vibration isolation
05/23/1989US4832715 Fine particle collector arrangement for vacuum pumps
05/23/1989US4831829 Solid sorbent
04/1989
04/18/1989US4822251 Vacuum pump having an rpm-measuring device
04/11/1989CA1252300A1 Cryopump with exhaust filter
04/04/1989US4817390 Cryogenic compressor
03/1989
03/29/1989EP0308846A1 Method for starting vacuum pumps connected in series, and device for carrying out the method
03/28/1989US4816046 Fine particle collector trap for vacuum evacuating system
03/28/1989US4815303 Vacuum cryopump with improved first stage
02/1989
02/14/1989US4803845 Controllable throttle for a vacuum pump
02/14/1989CA1249983A1 HIGH PRESSURE RECIPROCATING MOTION COMPRESSOR AND USE THEREOF FOR THE POLYMERIZATION OF ETHYLENE AND .alpha.-OLEFINS
01/1989
01/10/1989US4797068 Vacuum evacuation system
01/03/1989US4795131 Vacuum controller
12/1988
12/28/1988EP0297061A2 Vacuum insulated superconducting electrical conductor employing a getter device
12/28/1988EP0296817A2 Liquid dispensing apparatus
12/20/1988US4792283 For transporting liquid by bubbles
12/20/1988US4791791 For removing gaseous species
12/13/1988US4790726 Air free reciprocatory vacuum pump
12/07/1988EP0294224A2 Bakeable vacuum systems
11/1988
11/22/1988US4785851 Vacuum security valve having a buffer volume
11/17/1988EP0185702B1 Cryopump with improved second stage array
11/09/1988EP0289858A1 Fine particle collector trap for vacuum evacuating system
10/1988
10/25/1988CA1243472A1 Pnictide trap for vacuum systems
10/20/1988DE3710782A1 Method and device for pumping out vapours and/or vaporous mixtures and/or gas-vapour mixtures or similar media
09/1988
09/14/1988CN87208695U Pumping dish for round molecule pump
09/13/1988US4770609 Two-stage vacuum pump apparatus and method of operating the same
09/07/1988EP0280892A2 Vaccum pump with a device for counting the revolutions
08/1988
08/31/1988EP0280264A2 Multi-stage vacuum pump
08/31/1988CN88100310A Vacuum distributor
08/24/1988EP0118442B1 Radial vane gas throttling valve for vacuum systems
08/23/1988US4765229 Portable vacuum pump for desoldering purposes
08/16/1988US4763483 Cryopump and method of starting the cryopump
08/10/1988EP0277615A2 Fine particle collector arrangement for vacuum pumps
08/03/1988EP0276346A1 Control throttle for a vacuum pump, especially a cryogenic pump
07/1988
07/28/1988WO1988005500A1 An optimally staged cryopump
07/19/1988US4757689 Cryopump, and a method for the operation thereof
06/1988
06/28/1988US4753744 Use of perfluoropolyethers in mechanical pumps
06/16/1988WO1988004473A1 Enhanced density modified isoplanar process
05/1988
05/31/1988US4747749 Machine for compressing a fluid, having a plurality of compression stages in series
05/31/1988US4747276 Helium compressor apparatus
05/25/1988EP0268009A1 Filter cartridge
05/24/1988US4745761 Vibration damped cryogenic apparatus
05/17/1988US4744288 Axial piston pumps and motors
04/1988
04/12/1988US4736591 Cryopumps
03/1988
03/09/1988CN87207315U 升华泵泵体 Sublimation pump body
03/01/1988US4727724 Crysosorption pump for the rotor of an electric machine having a superconducting exciter winding
02/1988
02/24/1988EP0256234A2 Vacuum generating system
02/16/1988US4724677 Continuous cryopump with a device for regenerating the cryosurface
02/02/1988US4722191 High vacuum pumping system
01/1988
01/19/1988US4719938 Self-cleaning valve and cryopump utilizing the same
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